Nanosized graphene sheets induced high electrochemical activity in pure carbon film
Nanosized graphene sheets induced high electrochemical activity in pure carbon film
复制标题
纳米石墨烯片在纯碳膜中诱导高电化学活性
DOI：
10.1016/j.electacta.2018.01.027
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发表时间：
2018
影响因子：
6.6
通讯作者：
Dongfeng Diao
中科院分区：
文献类型：
--
作者：
Liangliang Huang;Yuanyuan Cao;Dongfeng Diao
通过电子回旋共振（ECR）等离子体溅射法在低能电子辐照条件下制备的纯碳薄膜中，发现纳米石墨烯片具有较高的电化学活性。采用电化学阻抗谱和循环伏安法研究了其电化学性能。石墨烯片嵌入碳（GSEC）膜显示出超过3.2V的宽电势窗口。在Fe（CN）64-/3-、Ru（NH3）62+/3+、多巴胺和抗坏血酸等氧化还原体系中，GSEC膜的电荷转移电阻和氧化还原峰间距（ΔEP）均低于非晶碳膜，特别是在内球体系中，Δ EP仅为非晶碳膜的一半。GSEC膜的高电化学活性源于纳米石墨烯片，它提供了更快的电子传递路径和更多的反应活性位点。我们的研究结果表明，GSEC膜具有很大的潜力，作为一个电化学生物传感器检测具有高氧化电位的生物分子。
We found that nanosized graphene sheets induced high electrochemical activity in pure carbon films, which prepared by electron cyclotron resonance (ECR) plasma sputtering under low-energy electron irradiation condition. The electrochemical properties were studied by electrochemical impedance spectroscopy and cyclic voltammetry. The graphene sheets embedded carbon (GSEC) films showed a wide potential window over 3.2 V. The charge transfer resistance and the oxidation-reduction peak separation (ΔEP) of the GSEC films are lower than amorphous carbon films in several redox systems (Fe(CN)64−/3-, Ru(NH3)62+/3+, dopamine and ascorbic acid), especially in the inner-sphere system, the ΔEPis only half of amorphous carbon films. The high electrochemical activity of GSEC films originated from the nanosized graphene sheets, which offered faster electron transfer path and more reaction active sites. Our results indicate the GSEC films have great potential to be an electrochemical biosensor in detecting biomolecules with high oxidation potential.
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影响因子：
2.5
作者：
Shunsuke Shiba;Junji Inoue;Dai Kato;K. Yoshioka;O. Niwa
通讯作者：
Shunsuke Shiba;Junji Inoue;Dai Kato;K. Yoshioka;O. Niwa
DOI：
10.1103/physrevb.50.5905
发表时间：
1994-09
期刊：
Physical review. B, Condensed matter
影响因子：
--
作者：
D. McCulloch;S. Prawer;A. Hoffman
通讯作者：
D. McCulloch;S. Prawer;A. Hoffman
影响因子：
4
作者：
Xi Zhang;Chao Wang;Chang Q. Sun;Dong-feng Diao
通讯作者：
Xi Zhang;Chao Wang;Chang Q. Sun;Dong-feng Diao
影响因子：
3.7
作者：
Ferrari, AC;Robertson, J
通讯作者：
Robertson, J
影响因子：
19
作者：
Jiang, Xue;Zhao, Jijun;Ahuja, Rajeev
通讯作者：
Ahuja, Rajeev